Finn (Slayer's Saga Book 1)

Faerie children are disappearing, and while Finn Jameson thinks it’s a shame, he’s not stupid enough to get tangled up with the Fae, not for any reason. He’s a demon hunter, after all, not a PI, and it’s definitely not a demon that’s snatching kids from the areas around the mage academies in Seelie. So when a Lady of the Winter Court comes to him for help, his first instinct is to say, “No.” But he never could say no to a lady in need.

As the mystery of the disappearances unravels, Finn realizes his instincts were right. It’s not hard to see he’s gotten in over his head and that the effort to save the girls’ lives may cost him his own.